Improvement in cow-milkers



W. A. WILSON.

GOW-MILKER.

No.188,455. Patented March13,1877.

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WITNESEEE WM JAM/4 W ITEL STATES WILLIAM A. WILSON, OF CHELSEA, MASSACHUSETTS.

' IMPROVEMENT IN COW-MILKERS.

Specification forming part of Letters Patent No. 188,455, dated March 13, 1877; application filed I August 21, 1876.

To all whom it may concern:

Be it known that I, WILLIAM A. WILSON, of Chelsea, in the county of Suffolk and State of Massachusetts, have invented a new andwhich serves to form a'vacuum in the chamber A, to which it is connected by an exhausttube, 0. D D D D are four tubes, made of hard rubber or of any non-corrosive metal. Each of these tubes has perforations near the upper end, and is connected, by flexible tubes H H H H to the can or vacuum-chamher A. To render these teat-tubes self-sustaining and adjustable, I attach to a standard, K, which is made fast to the top of the can, a

jointed arm, L L L arranged as shown, so that its upper extremity M may be placed at any desired height. At the point M I attach, by a swiveljoint, the horizontal cross-arms N N. At each extremity of the cross-arms N N I joint a forked arm, P P P P, said forks having elasticity sufficient to allow them to be sprung onto the teat-tubes and thus hold them.

By this arrangement the teat-tubes D D D" D may be set'and held in any desired position.

Having now described the construction and operation of my invention, what I claim is as follows:

forth.

WILLIAM A. WILSON;

Witnesses:

WILLIAM EDSON, N ATHL. EVANS; 

